157585229 has 2 divisors, whose sum is σ = 157585230. Its totient is φ = 157585228.

The previous prime is 157585177. The next prime is 157585277. The reversal of 157585229 is 922585751.

157585229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84088900 + 73496329 = 9170^2 + 8573^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157585229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157585229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157585429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78792614 + 78792615.

It is an arithmetic number, because the mean of its divisors is an integer number (78792615).

Almost surely, 2^157585229 is an apocalyptic number.

It is an amenable number.

157585229 is a deficient number, since it is larger than the sum of its proper divisors (1).

157585229 is an equidigital number, since it uses as much as digits as its factorization.

157585229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 252000, while the sum is 44.

The square root of 157585229 is about 12553.2955434021. The cubic root of 157585229 is about 540.1385435557.

The spelling of 157585229 in words is "one hundred fifty-seven million, five hundred eighty-five thousand, two hundred twenty-nine".